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Chalk-White To Coal-Black: Ludhiana's 'Breathing Billboard' Brings Attention To Rising Pollution...

Punjab's pollution levels have been concerning residents and environmentalists for quite a while now, with the air quality index (AQI) of the majority of cities at an "unhealthy" scale. Many among the cities from Ludhiana to Patiala have recorded AQIs between 163-120, which falls at a level that...